#! /bin/sh
# Make sure all these programs work properly
# when invoked with --help or --version.

# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
# Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

test "$VERBOSE" = yes && set -x

# Ensure that $SHELL is set to *some* value and exported.
# This is required for dircolors, which would fail e.g., when
# invoked via debuild (which removes SHELL from the environment).
test "x$SHELL" = x && SHELL=/bin/sh
export SHELL

. $srcdir/envvar-check

expected_failure_status_nohup=127
expected_failure_status_printenv=2
expected_failure_status_tty=3
expected_failure_status_sort=2
expected_failure_status_expr=3
expected_failure_status_lbracket=2
expected_failure_status_dir=2
expected_failure_status_ls=2
expected_failure_status_vdir=2

case "$all_programs" in
  *groups*)
    if test -w /dev/full && test -c /dev/full \
	&& echo > /dev/full 2>/dev/null; then
      cat 1>&2 <<\EOF
************************************************
WARNING: On this system, the built-in echo function of /bin/sh
does not report failure when writing to a full device.
To demonstrate, run this command:

  /bin/sh -c 'echo hello > /dev/full; echo status=$?'

Notice that the failing echo leaves its exit status set to zero
and does not produce a diagnostic.

That bug in /bin/sh would cause the test of the groups
scripts to fail, so it is being removed from the list of
programs checked by this test.
************************************************
EOF
      all_programs=`echo $all_programs | tr ' ' '\n' | grep -v '^groups$'`
    fi
  ;;
esac

fail=0

for lang in C fr da; do
  for i in $all_programs; do

    # Skip `test'; it doesn't accept --help or --version.
    test $i = test && continue;

    # false fails even when invoked with --help or --version.
    if test $i = false; then
      env LC_MESSAGES=$lang ../src/$i --help    >/dev/null && fail=1
      env LC_MESSAGES=$lang ../src/$i --version >/dev/null && fail=1
      continue
    fi

    # The just-built install executable is always named `ginstall'.
    test $i = install && i=ginstall

    # Make sure they exit successfully, under normal conditions.
    ../src/$i --help    > h-$i     || fail=1
    ../src/$i --version >/dev/null || fail=1

    # Make sure they mention the bug-reporting address in --help output.
    grep "$PACKAGE_BUGREPORT" h-$i > /dev/null || fail=1
    rm -f h-$i

    # Make sure they fail upon `disk full' error.
    if test -w /dev/full && test -c /dev/full; then
      ../src/$i --help    >/dev/full 2>/dev/null && fail=1
      ../src/$i --version >/dev/full 2>/dev/null && fail=1
      status=$?
      test $i = [ && prog=lbracket || prog=$i
      eval "expected=\$expected_failure_status_$prog"
      test x$expected = x && expected=1
      if test $status = $expected; then
	: # ok
      else
	fail=1
	echo "*** $i: bad exit status \`$status' (expected $expected)," 1>&2
	echo "  with --help or --version output redirected to /dev/full" 1>&2
      fi
    fi
  done
done

tmp=tmp-$$
tmp_in=in-$$
tmp_in2=in2-$$
tmp_dir=dir-$$
tmp_out=out-$$
mkdir $tmp || fail=1
cd $tmp || fail=1

comm_args="$tmp_in $tmp_in"
csplit_args="$tmp_in //"
cut_args='-f 1'
join_args="$tmp_in $tmp_in"
tr_args='a a'

chmod_args="a+x $tmp_in"
# Punt on these.
chgrp_args=--version
chown_args=--version
mkfifo_args=--version
mknod_args=--version
# Punt on uptime, since it fails (e.g., failing to get boot time)
# on some systems, and we shouldn't let that stop `make check'.
uptime_args=--version

cmp_args="$tmp_in $tmp_in2"

# Tell dd not to print the line with transfer rate and total.
# The transfer rate would vary between runs.
dd_args=status=noxfer

diff_args="$tmp_in $tmp_in2"
sdiff_args="$tmp_in $tmp_in2"
diff3_args="$tmp_in $tmp_in2 $tmp_in2"
cp_args="$tmp_in $tmp_in2"
ln_args="$tmp_in ln-target"
ginstall_args="$tmp_in $tmp_in2"
mv_args="$tmp_in $tmp_in2"
mkdir_args=$tmp_dir/subdir
rmdir_args=$tmp_dir
rm_args=$tmp_in
shred_args=$tmp_in
touch_args=$tmp_in2

basename_args=$tmp_in
dirname_args=$tmp_in
expr_args=foo

# Punt, in case GNU `id' hasn't been installed yet.
groups_args=--version

pathchk_args=$tmp_in
yes_args=--version
logname_args=--version
nohup_args=--version
printf_args=foo
seq_args=10
sleep_args=0
su_args=--version

# I'd rather not run sync, since it spins up disks that I've
# deliberately caused to spin down (but not unmounted).
sync_args=--version

test_args=foo

# This is necessary in the unusual event that there is
# no valid entry in /etc/mtab.
df_args=/

# This is necessary in the unusual event that getpwuid (getuid ()) fails.
id_args=-u

sleep 10m &
kill_args=$!

link_args="$tmp_in link-target"
unlink_args=$tmp_in

ln -s . slink
readlink_args=slink

stat_args=$tmp_in
unlink_args=$tmp_in
lbracket_args=": ]"

for i in $all_programs; do
  # Skip these.
  case $i in chroot|stty|tty|false) continue;; esac

  rm -rf $tmp_in $tmp_in2 $tmp_dir $tmp_out
  echo > $tmp_in
  echo > $tmp_in2
  mkdir $tmp_dir
  # echo ================== $i
  test $i = [ && prog=lbracket || prog=$i
  eval "args=\$${prog}_args"
  if ../../src/$i $args < $tmp_in > $tmp_out; then
    : # ok
  else
    echo FAIL: $i
    fail=1
  fi
  rm -rf $tmp_in $tmp_in2 $tmp_out $tmp_dir
done

# FIXME: trap
cd ..
rm -rf $tmp

exit $fail
